Remove old project.xml from traffic demo.
Move data to a new /data subdirectory.

Also eliminate the unzip step - pretty sure git compresses already
and we don't run against the compressed data in the demo.
Add export to demo.

Rename Insert to InsertAlert and add InsertAlertExport. I think
this will make it easier to not typo Insert v. TABLE.insert v.
Insert2 in the demo.

Not that I've done that or anything.

Also add an export table with a further involved procedure
(InsertAlertExport) that mirrors alerts to export table.
Update speaking track for 3.x